ghc-lib-9.4.5.20230430: The GHC API, decoupled from GHC versions
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LanguageHaskell2010

GHC.Tc.TyCl.Class

Description

Typechecking class declarations

Synopsis

Documentation

tcATDefault :: SrcSpan -> TCvSubst -> NameSet -> ClassATItem -> TcM [FamInst] Source #

Construct default instances for any associated types that aren't given a user definition Returns [] or singleton